An exhaust gas sensor includes a sensor element configured to communicate with an exhaust gas of an internal combustion engine, and a contact pin assembly including a first portion configured to be electrically connected to the sensor element when the contact pin assembly is installed in the exhaust gas sensor. The boundary region includes a second body region and a gate connector that is arranged on the second body region via an insulating film and electrically connected with a gate electrode. The receiver rotates the array so that the new axes are aligned with the Doppler gradient.